have heart set on
have (one's) heart set on (something)
To have a strong (and sometimes inflexible) desire for something, especially something one expects to happen or be attained soon. We all had our hearts set on traveling to Spain for the summer, until Lizzy broke her leg and we had to cancel the trip. I wanted to spend the money on a new car, but my husband had his heart set on getting new furniture for the living room.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have one's heart set on something
Fig. to be desiring and expecting something. Jane has her heart set on going to London. Bob will be disappointed. He had his heart set on going to college this year.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.